Add some new recipes.

Add few el-get recipes.
Could you add them to main recipes repository, please?
Feel free to fix or modify, if you found any mistakes.
Many thanks!
Oh, actually that won't work. At `:post-init` time `default-directory` will be package dir, but the form only gets run after loading yasnippet, at which time it will be something else. So you should do:
```el